Trical schematic (table 2.a) – Rockwell Automation 2364E Non-Regenerative DC Bus Supply Unit (NRU) User Manual
Page 28

Publication 2364E-5.01 April 2002
2-4
Your 180A DC NRU (Current Code A)
Table 2.A: 180A DC NRU Symbol-to-Component Cross Reference
AC 3-Phase Input Voltage
Symbol
Description
Option
230V AC
380V AC
460V AC
575V AC
AM1
Ammeter monitoring L1
200A
C11
Bridge suppressor capacitor
3 uF, 2000V
CH11
DC choke
611 uH
CR1
Phase-loss relay
CR2
Fault relay
CT1, CT3
Current transformer
200:5
D1 - 6
Diodes
450A,1800V AC
D11
Bridge suppressor diode
60A, 1700V
EA1
Powermonitor II
EA2
Bus indicator PCB
EA2F1 - 2
Bus indicator PCB fuses
1A, 1000V, HVR, 1-3/32" diameter, 3" length, 500AIC
EA3
AC line RC suppressor PCB
EA5
Air flow sensor PCB
F1 - 3
Incoming 3-phase, line fuses
250A, 170M
F4, F6
Primary fuse for a 1 kVA control
transformer
6.25A, KLDR
4A, KLDR
3A, KLDR
3A, KLDR
Primary fuse for a 2 kVA control
transformer
12A, KLDR
8A, KLDR
6.25A, KLDR
5A, KLDR
Primary fuse for a 5 kVA control
transformer
30A, KLDR
17.5A, KLDR
15A, KLDR
12A, KLDR
F7
NRU control power fuse
2A, KLDR
F8
Control bus fuse for a 1 kVA
control transformer
6A, KLDR
Control bus fuse for a 2 kVA
control transformer
15A, KLDR
Control bus fuse for a 5 kVA
control transformer
35A, FRN
F11 - 13
Phase-loss fuses
1A, KLDR
F14 - 16
RC suppressor fuses
25A, KTKR
HS1 - 2
Bridge heatsink
MCP1
Motor circuit protector
250A, J-frame
MTR1
Bridge fan
560 CFM
MTR1-C
Bridge fan capacitor
10 uF capacitor
PL1
DC-Bus-Energized pilot light
24V AC/VDC, red, 800MR
PL2
Unit-Not-Faulted pilot light
120V AC, amber, 800MR
PS1
Air flow sensor power supply
24V DC, 0.5A
PT1
Control power transformer
A 1 kVA control transformer is standard, 2 kVA and 5 kVA control
transformers are available as options. This transformer has multiple
taps to accommodate 230, 380, 460, 575V AC primary voltages.
R11
Bridge suppressor resistor
2.2 ohm, 100 W
R12
Bridge suppressor resistor
100 ohm, 100 W
S1 - 2
Heatsink thermoswitch
210 °F
S5
Air flow switch
SP1 - 3
Line-to-line MOVs
360 J, 275V AC
460 J, 320V AC
460 J, 320V AC
550 J, 385V AC
SP4
Neutral-to-ground MOV
600 J, 550V AC
760 J, 680V AC
760 J, 680V AC
760 J, 680V AC
VM1
DC bus voltmeter
750V DC
750V DC
1000V DC
1000V DC
VM2
Ground fault detector
Components marked as being options are part of NRU standard options. Not all NRUs will have these components.